104121752138 has 8 divisors (see below), whose sum is σ = 161220777600. Its totient is φ = 50381492940.

The previous prime is 104121752131. The next prime is 104121752149. The reversal of 104121752138 is 831257121401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 104121752098 and 104121752107.

It is not an unprimeable number, because it can be changed into a prime (104121752131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 839691488 + ... + 839691611.

It is an arithmetic number, because the mean of its divisors is an integer number (20152597200).

Almost surely, 2^104121752138 is an apocalyptic number.

104121752138 is a deficient number, since it is larger than the sum of its proper divisors (57099025462).

104121752138 is a wasteful number, since it uses less digits than its factorization.

104121752138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679383132.

The product of its (nonzero) digits is 13440, while the sum is 35.

Adding to 104121752138 its reverse (831257121401), we get a palindrome (935378873539).

The spelling of 104121752138 in words is "one hundred four billion, one hundred twenty-one million, seven hundred fifty-two thousand, one hundred thirty-eight".